Grundfos - NBE 50-315/331AAF2AESBQQEMWA End Suction Pump - 400V - Three Phase - 783 Ltr/min. - Cast Iron

Non-self-priming, single-stage, centrifugal volute pump unit designed according to ISO 5199 with dimensions and rated performance according to EN 733 (10 bar). Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, radial discharge port, horizontal shaft and a back pull-out design enabling removal of the motor, motor stool, cover and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is close-coupled to a fan-cooled, permanent-magnet synchronous motor. The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously variable control of the motor speed, which again enables adaptation of the performance to a given requirement.

Suitable for: Commercial air conditioning, Industrial heating, Irrigation

Key Product Features

• Net weight: 145 kg
• Mains frequency: 50 Hz
• Rated Head: 32.3 m
• Rated Flow: 47 m³/h
• Product Voltage: 3 x 380-500 V
• Temperature Liquid Range: -25 .. 120 °C
• Pumped Liquid: Water
• Maximum Operating Pressure: 16 bar
• Impeller Material: Cast Iron
• Pump Housing Material: Cast Iron

This is a Grundfos Circulator pump which can be used within closed loop cooling, heating and hot water systems.

Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.